Performance of TS-1-Coated Structured Packing Materials for Styrene Oxidation Reaction

Performance of TS-1-Coated Structured Packing Materials for Styrene Oxidation Reaction
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TS-1涂层规整填料在苯乙烯氧化反应中的性能

DOI:
10.1021/cs1001509
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发表时间:
2011-03
期刊:
影响因子:
12.9
通讯作者:
Yeung, King Lun
Yeung, King Lun
中科院分区:
化学1区
文献类型:
--
作者:
Wang, Xiaobin;Zhang, Xiongfu;Wang, Yao;Liu, Haiou;Qiu, Jieshan;Wang, Jinqu;Han, Wei;Yeung, King Lun

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钛硅分子筛-1(TS-1)涂覆在复杂几何形状的不锈钢填料环上,为改善传质过程提供了大的界面接触面积。采用有机连接剂组装沸石晶种,并通过水热再生在其表面沉积一层薄而均匀的TS-1催化剂。的TS-1层的化学,结构和催化性能进行了检查。与粉末相比,从TS-1涂覆的基底获得了一个数量级更高的苯乙烯转化率。催化剂对预处理敏感,在氮气中热处理比空气煅烧样品的转化率高30%。N2预处理后的催化剂活性损失小,再生性能好。
Titanium silicalite-1 (TS-1)-coated on stainless steel packing rings of complex geometries provided a large interfacial contact area for improving mass transport processes. Zeolite seeds were assembled using organic linker, and a thin uniform layer of TS-1 catalyst was deposited on the surface by hydrothermal regrowth. The chemical, structural, and catalytic properties of the TS-1 layer were examined. An order of magnitude higher styrene conversion rate was obtained from the TS-1-coated substrates compared with powder. The catalyst was sensitive to pretreatment, and heat treatment in nitrogen provided a 30% higher conversion rate than the air-calcined samples. The N2-pretreated catalyst displayed lower activity loss and better regenerability.
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